This is Ultimate 0.2.4-tmp.dk.referee-eval-f1d7dc9-m [2024-09-20 13:26:05,438 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-20 13:26:05,486 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-20 13:26:05,489 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-20 13:26:05,489 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-20 13:26:05,510 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-20 13:26:05,511 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-20 13:26:05,511 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-20 13:26:05,513 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-20 13:26:05,514 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-20 13:26:05,514 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-20 13:26:05,515 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-20 13:26:05,515 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-20 13:26:05,515 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-20 13:26:05,516 INFO L153 SettingsManager]: * Use SBE=true [2024-09-20 13:26:05,518 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-20 13:26:05,518 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-20 13:26:05,518 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-20 13:26:05,519 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-20 13:26:05,519 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-20 13:26:05,519 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-20 13:26:05,520 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-20 13:26:05,520 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-20 13:26:05,520 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-20 13:26:05,520 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-20 13:26:05,520 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-20 13:26:05,520 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-20 13:26:05,520 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-20 13:26:05,521 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-20 13:26:05,521 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-20 13:26:05,521 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-20 13:26:05,521 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-20 13:26:05,521 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-20 13:26:05,521 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 13:26:05,522 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-20 13:26:05,522 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-20 13:26:05,522 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-20 13:26:05,522 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-20 13:26:05,522 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-20 13:26:05,522 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-20 13:26:05,523 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-20 13:26:05,525 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-20 13:26:05,525 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-20 13:26:05,525 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/certificate-witnesses-artifact/referee/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-20 13:26:05,758 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-20 13:26:05,776 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-20 13:26:05,779 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-20 13:26:05,779 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-20 13:26:05,780 INFO L274 PluginConnector]: CDTParser initialized [2024-09-20 13:26:05,781 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-new/gauss_sum.i.v+cfa-reducer.c [2024-09-20 13:26:07,004 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-20 13:26:07,161 INFO L384 CDTParser]: Found 1 translation units. [2024-09-20 13:26:07,161 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-new/gauss_sum.i.v+cfa-reducer.c [2024-09-20 13:26:07,167 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/8382f577d/148b53da4d7542eeba64f4276022afc2/FLAGe81a9a460 [2024-09-20 13:26:07,575 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/8382f577d/148b53da4d7542eeba64f4276022afc2 [2024-09-20 13:26:07,577 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-20 13:26:07,578 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-20 13:26:07,578 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/gauss_sum.i.v+cfa-reducer.yml/witness-2.1.yml [2024-09-20 13:26:07,611 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-20 13:26:07,612 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-20 13:26:07,614 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-20 13:26:07,614 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-20 13:26:07,618 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-20 13:26:07,618 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:26:07" (1/2) ... [2024-09-20 13:26:07,620 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b5f12f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:26:07, skipping insertion in model container [2024-09-20 13:26:07,621 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:26:07" (1/2) ... [2024-09-20 13:26:07,622 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@f94c6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:26:07, skipping insertion in model container [2024-09-20 13:26:07,622 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 01:26:07" (2/2) ... [2024-09-20 13:26:07,622 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b5f12f0 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:26:07, skipping insertion in model container [2024-09-20 13:26:07,623 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 01:26:07" (2/2) ... [2024-09-20 13:26:07,627 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-20 13:26:07,627 INFO L1541 ArrayList]: Location invariant before [L34-L58] ((((\old(__return_60) == __return_60) && ((((long long) main__sum * 2) == (((long long) main__n * main__n) + main__n)) || (main__i < ((long long) main__n + 1)))) && (1 <= main__n)) && ((((long long) main__sum * 2) + main__i) == ((long long) main__i * main__i))) [2024-09-20 13:26:07,641 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-20 13:26:07,767 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-new/gauss_sum.i.v+cfa-reducer.c[1014,1027] [2024-09-20 13:26:07,775 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 13:26:07,784 INFO L200 MainTranslator]: Completed pre-run [2024-09-20 13:26:07,797 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-new/gauss_sum.i.v+cfa-reducer.c[1014,1027] Start Parsing Local [2024-09-20 13:26:07,820 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 13:26:07,837 INFO L204 MainTranslator]: Completed translation [2024-09-20 13:26:07,838 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:26:07 WrapperNode [2024-09-20 13:26:07,838 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-20 13:26:07,839 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-20 13:26:07,839 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-20 13:26:07,839 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-20 13:26:07,848 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:26:07" (1/1) ... [2024-09-20 13:26:07,848 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:26:07" (1/1) ... [2024-09-20 13:26:07,853 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:26:07" (1/1) ... [2024-09-20 13:26:07,867 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-09-20 13:26:07,867 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:26:07" (1/1) ... [2024-09-20 13:26:07,867 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:26:07" (1/1) ... [2024-09-20 13:26:07,873 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:26:07" (1/1) ... [2024-09-20 13:26:07,875 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:26:07" (1/1) ... [2024-09-20 13:26:07,875 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:26:07" (1/1) ... [2024-09-20 13:26:07,876 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:26:07" (1/1) ... [2024-09-20 13:26:07,877 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-20 13:26:07,878 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-20 13:26:07,878 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-20 13:26:07,878 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-20 13:26:07,879 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:26:07" (1/1) ... [2024-09-20 13:26:07,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 13:26:07,892 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-20 13:26:07,913 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-09-20 13:26:07,915 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-09-20 13:26:07,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-20 13:26:07,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-20 13:26:07,956 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-20 13:26:07,956 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-20 13:26:07,956 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-20 13:26:07,957 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-20 13:26:07,957 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-20 13:26:07,958 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-20 13:26:07,958 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-20 13:26:07,958 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-20 13:26:07,958 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-20 13:26:07,958 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-20 13:26:07,958 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-20 13:26:07,958 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-20 13:26:07,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-20 13:26:07,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-20 13:26:07,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-09-20 13:26:07,959 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-09-20 13:26:07,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-20 13:26:08,066 INFO L242 CfgBuilder]: Building ICFG [2024-09-20 13:26:08,068 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-20 13:26:08,179 INFO L291 CfgBuilder]: Performing block encoding [2024-09-20 13:26:08,208 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-20 13:26:08,208 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-20 13:26:08,209 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:26:08 BoogieIcfgContainer [2024-09-20 13:26:08,209 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-20 13:26:08,209 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-20 13:26:08,209 INFO L270 PluginConnector]: Initializing Referee... [2024-09-20 13:26:08,210 INFO L274 PluginConnector]: Referee initialized [2024-09-20 13:26:08,210 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 20.09 01:26:07" (1/4) ... [2024-09-20 13:26:08,210 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@6f86dedb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 20.09 01:26:08, skipping insertion in model container [2024-09-20 13:26:08,210 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 01:26:07" (2/4) ... [2024-09-20 13:26:08,211 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@6f86dedb and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 20.09 01:26:08, skipping insertion in model container [2024-09-20 13:26:08,211 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:26:07" (3/4) ... [2024-09-20 13:26:08,211 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@6f86dedb and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 20.09 01:26:08, skipping insertion in model container [2024-09-20 13:26:08,211 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:26:08" (4/4) ... [2024-09-20 13:26:08,213 INFO L79 RefereeObserver]: Analyzing ICFG gauss_sum.i.v+cfa-reducer.c [2024-09-20 13:26:08,216 INFO L113 InvariantChecker]: Found 0 loops. [2024-09-20 13:26:08,216 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 6 edges. [2024-09-20 13:26:08,216 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 8 edges. [2024-09-20 13:26:08,216 INFO L131 InvariantChecker]: Will check 2 loop-free subgraphs from procedure entry to error location [2024-09-20 13:26:08,253 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 6 edges [2024-09-20 13:26:08,255 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:26:08,256 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:26:08,257 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:26:08,258 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:26:08,259 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:26:08,288 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-20 13:26:08,290 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:26:08,290 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:26:08,290 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:26:08,291 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:26:08,291 INFO L314 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2024-09-20 13:26:08,291 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.referee has thrown an exception: java.lang.AssertionError: Either subgraph not acyclic or there is a bug at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AcyclicSubgraphMerger.(AcyclicSubgraphMerger.java:169) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.InvariantChecker.(InvariantChecker.java:145) at de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeStarter.(RefereeStarter.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver.finish(RefereeObserver.java:80) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-09-20 13:26:08,295 INFO L158 Benchmark]: Toolchain (without parser) took 682.51ms. Allocated memory is still 155.2MB. Free memory was 121.9MB in the beginning and 113.6MB in the end (delta: 8.3MB). Peak memory consumption was 6.2MB. Max. memory is 16.1GB. [2024-09-20 13:26:08,296 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 109.1MB. Free memory is still 79.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 13:26:08,296 INFO L158 Benchmark]: Witness Parser took 0.11ms. Allocated memory is still 155.2MB. Free memory is still 124.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 13:26:08,297 INFO L158 Benchmark]: CACSL2BoogieTranslator took 224.22ms. Allocated memory is still 155.2MB. Free memory was 121.9MB in the beginning and 108.3MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-20 13:26:08,298 INFO L158 Benchmark]: Boogie Preprocessor took 38.63ms. Allocated memory is still 155.2MB. Free memory was 108.3MB in the beginning and 106.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-20 13:26:08,298 INFO L158 Benchmark]: RCFGBuilder took 331.08ms. Allocated memory is still 155.2MB. Free memory was 106.2MB in the beginning and 119.9MB in the end (delta: -13.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-09-20 13:26:08,299 INFO L158 Benchmark]: Referee took 84.05ms. Allocated memory is still 155.2MB. Free memory was 119.9MB in the beginning and 113.6MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-09-20 13:26:08,301 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.referee: - ExceptionOrErrorResult: AssertionError: Either subgraph not acyclic or there is a bug de.uni_freiburg.informatik.ultimate.plugins.generator.referee: AssertionError: Either subgraph not acyclic or there is a bug: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AcyclicSubgraphMerger.(AcyclicSubgraphMerger.java:169) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 109.1MB. Free memory is still 79.7MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.11ms. Allocated memory is still 155.2MB. Free memory is still 124.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 224.22ms. Allocated memory is still 155.2MB. Free memory was 121.9MB in the beginning and 108.3MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.63ms. Allocated memory is still 155.2MB. Free memory was 108.3MB in the beginning and 106.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 331.08ms. Allocated memory is still 155.2MB. Free memory was 106.2MB in the beginning and 119.9MB in the end (delta: -13.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Referee took 84.05ms. Allocated memory is still 155.2MB. Free memory was 119.9MB in the beginning and 113.6MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-20 13:26:08,324 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.4-tmp.dk.referee-eval-f1d7dc9-m [2024-09-20 13:26:10,194 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-20 13:26:10,238 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.epf [2024-09-20 13:26:10,243 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-20 13:26:10,243 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-20 13:26:10,277 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-20 13:26:10,278 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-20 13:26:10,279 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-20 13:26:10,279 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-20 13:26:10,282 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-20 13:26:10,282 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-20 13:26:10,282 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-20 13:26:10,282 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-20 13:26:10,283 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-20 13:26:10,283 INFO L153 SettingsManager]: * Use SBE=true [2024-09-20 13:26:10,283 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-20 13:26:10,285 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-20 13:26:10,285 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-20 13:26:10,285 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-20 13:26:10,285 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-20 13:26:10,285 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-20 13:26:10,286 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-20 13:26:10,286 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-20 13:26:10,286 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-09-20 13:26:10,286 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-09-20 13:26:10,286 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-20 13:26:10,286 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-09-20 13:26:10,286 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-20 13:26:10,287 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-20 13:26:10,287 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-20 13:26:10,287 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-20 13:26:10,287 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-20 13:26:10,287 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-20 13:26:10,287 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-20 13:26:10,287 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-20 13:26:10,287 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 13:26:10,288 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-20 13:26:10,288 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-20 13:26:10,288 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-20 13:26:10,288 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-09-20 13:26:10,288 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-09-20 13:26:10,290 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-20 13:26:10,290 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-20 13:26:10,290 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-20 13:26:10,291 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-20 13:26:10,291 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-09-20 13:26:10,291 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/certificate-witnesses-artifact/referee/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-20 13:26:10,529 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-20 13:26:10,546 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-20 13:26:10,548 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-20 13:26:10,550 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-20 13:26:10,550 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-20 13:26:10,552 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/gauss_sum.i.v+cfa-reducer.yml/witness-2.1.yml [2024-09-20 13:26:10,585 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-20 13:26:10,585 INFO L274 PluginConnector]: CDTParser initialized [2024-09-20 13:26:10,586 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-new/gauss_sum.i.v+cfa-reducer.c [2024-09-20 13:26:11,806 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-20 13:26:11,935 INFO L384 CDTParser]: Found 1 translation units. [2024-09-20 13:26:11,936 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-new/gauss_sum.i.v+cfa-reducer.c [2024-09-20 13:26:11,941 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/9864c5216/325c71797c5d46a18e572a29b9d57890/FLAGefd73a87c [2024-09-20 13:26:12,355 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/9864c5216/325c71797c5d46a18e572a29b9d57890 [2024-09-20 13:26:12,355 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-20 13:26:12,358 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-20 13:26:12,358 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-20 13:26:12,359 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-20 13:26:12,362 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-20 13:26:12,363 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 01:26:10" (1/2) ... [2024-09-20 13:26:12,363 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7246a64c and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:26:12, skipping insertion in model container [2024-09-20 13:26:12,366 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 01:26:10" (1/2) ... [2024-09-20 13:26:12,369 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1b350ba6 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:26:12, skipping insertion in model container [2024-09-20 13:26:12,369 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:26:12" (2/2) ... [2024-09-20 13:26:12,369 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7246a64c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:26:12, skipping insertion in model container [2024-09-20 13:26:12,369 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:26:12" (2/2) ... [2024-09-20 13:26:12,376 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-20 13:26:12,377 INFO L1541 ArrayList]: Location invariant before [L34-L58] ((((\old(__return_60) == __return_60) && ((((long long) main__sum * 2) == (((long long) main__n * main__n) + main__n)) || (main__i < ((long long) main__n + 1)))) && (1 <= main__n)) && ((((long long) main__sum * 2) + main__i) == ((long long) main__i * main__i))) [2024-09-20 13:26:12,391 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-20 13:26:12,515 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-new/gauss_sum.i.v+cfa-reducer.c[1014,1027] [2024-09-20 13:26:12,518 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 13:26:12,526 INFO L200 MainTranslator]: Completed pre-run [2024-09-20 13:26:12,537 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-new/gauss_sum.i.v+cfa-reducer.c[1014,1027] Start Parsing Local [2024-09-20 13:26:12,556 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 13:26:12,566 INFO L204 MainTranslator]: Completed translation [2024-09-20 13:26:12,567 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:26:12 WrapperNode [2024-09-20 13:26:12,567 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-20 13:26:12,568 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-20 13:26:12,568 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-20 13:26:12,568 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-20 13:26:12,577 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:26:12" (1/1) ... [2024-09-20 13:26:12,577 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:26:12" (1/1) ... [2024-09-20 13:26:12,583 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:26:12" (1/1) ... [2024-09-20 13:26:12,598 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-09-20 13:26:12,598 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:26:12" (1/1) ... [2024-09-20 13:26:12,599 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:26:12" (1/1) ... [2024-09-20 13:26:12,602 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:26:12" (1/1) ... [2024-09-20 13:26:12,607 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:26:12" (1/1) ... [2024-09-20 13:26:12,608 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:26:12" (1/1) ... [2024-09-20 13:26:12,609 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:26:12" (1/1) ... [2024-09-20 13:26:12,611 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-20 13:26:12,612 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-20 13:26:12,613 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-20 13:26:12,613 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-20 13:26:12,613 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:26:12" (1/1) ... [2024-09-20 13:26:12,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 13:26:12,625 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-20 13:26:12,636 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-09-20 13:26:12,644 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-09-20 13:26:12,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-20 13:26:12,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-20 13:26:12,675 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-20 13:26:12,675 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-20 13:26:12,676 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-20 13:26:12,676 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-20 13:26:12,676 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-20 13:26:12,676 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-20 13:26:12,676 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-20 13:26:12,676 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-20 13:26:12,676 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-20 13:26:12,676 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-20 13:26:12,677 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-20 13:26:12,677 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-20 13:26:12,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-09-20 13:26:12,677 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-20 13:26:12,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-09-20 13:26:12,677 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-09-20 13:26:12,677 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-20 13:26:12,737 INFO L242 CfgBuilder]: Building ICFG [2024-09-20 13:26:12,739 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-20 13:26:16,942 INFO L291 CfgBuilder]: Performing block encoding [2024-09-20 13:26:16,980 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-20 13:26:16,981 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-20 13:26:16,981 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:26:16 BoogieIcfgContainer [2024-09-20 13:26:16,981 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-20 13:26:16,982 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-20 13:26:16,982 INFO L270 PluginConnector]: Initializing Referee... [2024-09-20 13:26:16,982 INFO L274 PluginConnector]: Referee initialized [2024-09-20 13:26:16,982 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 01:26:10" (1/4) ... [2024-09-20 13:26:16,983 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@1c63d3f5 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 20.09 01:26:16, skipping insertion in model container [2024-09-20 13:26:16,986 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 20.09 01:26:12" (2/4) ... [2024-09-20 13:26:16,986 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@1c63d3f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 20.09 01:26:16, skipping insertion in model container [2024-09-20 13:26:16,986 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:26:12" (3/4) ... [2024-09-20 13:26:16,986 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@1c63d3f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 20.09 01:26:16, skipping insertion in model container [2024-09-20 13:26:16,986 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:26:16" (4/4) ... [2024-09-20 13:26:16,987 INFO L79 RefereeObserver]: Analyzing ICFG gauss_sum.i.v+cfa-reducer.c [2024-09-20 13:26:16,990 INFO L113 InvariantChecker]: Found 0 loops. [2024-09-20 13:26:16,990 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 6 edges. [2024-09-20 13:26:16,991 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 8 edges. [2024-09-20 13:26:16,991 INFO L131 InvariantChecker]: Will check 2 loop-free subgraphs from procedure entry to error location [2024-09-20 13:26:17,019 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 6 edges [2024-09-20 13:26:17,019 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:26:17,020 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:26:17,020 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:26:17,021 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:26:17,022 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:26:17,047 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-20 13:26:17,048 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:26:17,048 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:26:17,048 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:26:17,049 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:26:17,049 INFO L314 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2024-09-20 13:26:17,049 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.referee has thrown an exception: java.lang.AssertionError: Either subgraph not acyclic or there is a bug at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AcyclicSubgraphMerger.(AcyclicSubgraphMerger.java:169) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.InvariantChecker.(InvariantChecker.java:145) at de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeStarter.(RefereeStarter.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver.finish(RefereeObserver.java:80) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-09-20 13:26:17,053 INFO L158 Benchmark]: Toolchain (without parser) took 4694.32ms. Allocated memory was 58.7MB in the beginning and 77.6MB in the end (delta: 18.9MB). Free memory was 30.4MB in the beginning and 43.4MB in the end (delta: -13.0MB). Peak memory consumption was 6.2MB. Max. memory is 16.1GB. [2024-09-20 13:26:17,053 INFO L158 Benchmark]: Witness Parser took 0.28ms. Allocated memory is still 41.9MB. Free memory is still 25.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 13:26:17,053 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 41.9MB. Free memory is still 23.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 13:26:17,053 INFO L158 Benchmark]: CACSL2BoogieTranslator took 209.09ms. Allocated memory is still 58.7MB. Free memory was 30.0MB in the beginning and 33.1MB in the end (delta: -3.1MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. [2024-09-20 13:26:17,054 INFO L158 Benchmark]: Boogie Preprocessor took 43.48ms. Allocated memory is still 58.7MB. Free memory was 33.1MB in the beginning and 30.8MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-20 13:26:17,055 INFO L158 Benchmark]: RCFGBuilder took 4369.22ms. Allocated memory was 58.7MB in the beginning and 77.6MB in the end (delta: 18.9MB). Free memory was 30.8MB in the beginning and 51.0MB in the end (delta: -20.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-09-20 13:26:17,055 INFO L158 Benchmark]: Referee took 69.75ms. Allocated memory is still 77.6MB. Free memory was 50.7MB in the beginning and 43.4MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-09-20 13:26:17,057 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.referee: - ExceptionOrErrorResult: AssertionError: Either subgraph not acyclic or there is a bug de.uni_freiburg.informatik.ultimate.plugins.generator.referee: AssertionError: Either subgraph not acyclic or there is a bug: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AcyclicSubgraphMerger.(AcyclicSubgraphMerger.java:169) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.28ms. Allocated memory is still 41.9MB. Free memory is still 25.2MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.12ms. Allocated memory is still 41.9MB. Free memory is still 23.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 209.09ms. Allocated memory is still 58.7MB. Free memory was 30.0MB in the beginning and 33.1MB in the end (delta: -3.1MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.48ms. Allocated memory is still 58.7MB. Free memory was 33.1MB in the beginning and 30.8MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 4369.22ms. Allocated memory was 58.7MB in the beginning and 77.6MB in the end (delta: 18.9MB). Free memory was 30.8MB in the beginning and 51.0MB in the end (delta: -20.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Referee took 69.75ms. Allocated memory is still 77.6MB. Free memory was 50.7MB in the beginning and 43.4MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-20 13:26:17,085 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request...